#include<stdio.h>

int main()
{
	struct Book
	{
		int ISBN;
		char author_name[50];
		char book_name[50];
		float prize;
	};
	struct Book book1;
	struct Book * linked_list = &book1;
	linked_list->ISBN=1234;
	printf("%d\n", linked_list->ISBN);// 两者相等，`->`只是语法糖
	printf("%d\n", (*linked_list).ISBN);
	struct Book a = {
		.ISBN=20050213,
		.author_name="fjkdslafds",
		.book_name="fhidjsh",
		.prize=23.44,
	};
	printf("%d", a.ISBN);
	return 0;
}
